public String upFile() throws Exception{
            String targetURL = null;// TODO 指定URL
           File targetFile = null;// TODO 指定上传文件
           System.out.println(config.getPath());
           String str= new String(config.getPath().getBytes("iso8859-1"), "utf-8"); 
           config.setPath(str);
           
           targetFile = new File(config.getPath());
           targetURL = "http://localhost:8081/ftoa/upload"; //servleturl
           PostMethod filePost = new PostMethod(targetURL);
           System.out.println(targetFile);
           System.out.println(config.getPath());
           System.out.println(filePost);
           try
           {
            //通过以下方法可以模拟页面参数提交
          //  filePost.setParameter("name", "中文");
         //  filePost.setParameter("pass", "1234");
            System.out.println(targetFile.getName());
           Part[] parts = { new FilePart(targetFile.getName(), targetFile) };
            filePost.setRequestEntity(new MultipartRequestEntity(parts,filePost.getParams()));
            
            HttpClient client = new HttpClient();
            client.getHttpConnectionManager().getParams().setConnectionTimeout(5000);
            int status = client.executeMethod(filePost);
            if (status == HttpStatus.SC_OK)
            {
             System.out.println("上传成功");
             configService.updataInfo(config);
             // 上传成功
            }
            else
            {
             System.out.println("上传失败");
             // 上传失败
            }
           }
           catch (Exception ex)
           {
            ex.printStackTrace();
           }
           finally
           {
            filePost.releaseConnection();
           }
        return null;    
    }

public void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException
{
      response.setCharacterEncoding("UTF-8");
      request.setCharacterEncoding("UTF-8");  
   try
   {
       File tempfile = new File(System.getProperty("java.io.tmpdir")); // 采用系统临时文件目录  
    DiskFileItemFactory factory = new DiskFileItemFactory();
    factory.setSizeThreshold(4096); // 设置缓冲区大小，这里是4kb
    factory.setRepository(tempfile);// 设置缓冲区目录 tempPathFile
    ServletFileUpload upload = new ServletFileUpload(factory);
    upload.setSizeMax(4194304); // 设置最大文件尺寸，这里是4MB
    List<FileItem> items = upload.parseRequest(request);// 得到所有的文件   文件名是？？？？
    Iterator<FileItem> i = items.iterator();
    while (i.hasNext())
    {
     FileItem fi = (FileItem) i.next();
     fi.getString("UTF-8"); 
     String fileName = fi.getName();
     
//     response.setHeader("Content-disposition", "attachment;filename="
//                + URLEncoder.encode(fileName, "UTF-8"));
     
     String str= new String(fileName.getBytes("ISO8859_1"), "utf-8"); 
     fileName=str;
     System.out.println(fileName);//都是问号?????.txt 
     if (fileName != null)
     {
      File fullFile = new File(fi.getName());
      File savedFile = new File(uploadPath, fullFile.getName());
      fi.write(savedFile);
     }
    }
    System.out.print("upload succeed");
   }
   catch (Exception e)
   {
    System.out.println(e.getMessage());
    // 可以跳转出错页面
    e.printStackTrace();
   }
}